CN212378579U - Little steam turbine exhaust steam recycling system - Google Patents

Little steam turbine exhaust steam recycling system Download PDF

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Publication number
CN212378579U
CN212378579U CN202020758426.4U CN202020758426U CN212378579U CN 212378579 U CN212378579 U CN 212378579U CN 202020758426 U CN202020758426 U CN 202020758426U CN 212378579 U CN212378579 U CN 212378579U
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China
Prior art keywords
water
heat exchanger
heat
steam turbine
preservation storage
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CN202020758426.4U
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Chinese (zh)
Inventor
高良俊
赵京岳
孙宝红
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Jiangsu Jiayi Thermoelectricity Co ltd
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Jiangsu Jiayi Thermoelectricity Co ltd
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Priority to CN202020758426.4U priority Critical patent/CN212378579U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Abstract

The utility model relates to a little steam turbine exhaust steam recycling system, including little steam turbine, cooling tower, change water clean water basin, heat exchanger, comdenstion water heat preservation storage case, heat supply network return water system, the heat exchanger set up in comdenstion water heat preservation storage case's top, the water inlet of heat exchanger and the circulating water house steward intercommunication of cooling tower, the delivery port pipe connection of heat exchanger changes water clean water basin, the steam inlet of heat exchanger and little steam turbine's exhaust steam pipe intercommunication, the comdenstion water export of heat exchanger and comdenstion water heat preservation storage case's water inlet pipe connection, comdenstion water heat preservation storage case delivery port and heat supply network return water system's water inlet pipe connection and be provided with the frequency conversion hydrophobic pump on this pipeline, all be provided with corresponding valve on each connecting tube. The small steam turbine exhaust steam recycling system reasonably and effectively recycles the small steam turbine exhaust steam, contributes to energy conservation, consumption reduction and emission reduction of thermal power enterprises, and brings considerable economic benefits to the enterprises.

Description

Little steam turbine exhaust steam recycling system
Technical Field
The utility model belongs to the technical field of the energy recovery technique of recycling and specifically relates to a little steam turbine exhaust steam recycling system is related to.
Background
The small thermal power turbine is an auxiliary device of a steam turbine of a thermal power plant. If the exhausted steam (dead steam) of the small steam turbine is directly discharged, the waste heat and the waste water (energy resources) are greatly wasted, and certain pollution is caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the waste steam recycling system of the small steam turbine is provided to recycle the waste steam of the small steam turbine, so that the purposes of energy conservation, consumption reduction and emission reduction are achieved.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a little steam turbine exhaust steam recycling system, is including little steam turbine, cooling tower, change water clean water basin, heat exchanger, comdenstion water heat preservation storage case, heat supply network return water system, the heat exchanger set up in comdenstion water heat preservation storage case's top, the water inlet of heat exchanger and the circulating water house steward intercommunication of cooling tower, the delivery port pipe connection change water clean water basin of heat exchanger, the steam inlet of heat exchanger and the exhaust steam pipe intercommunication of little steam turbine, the comdenstion water export of heat exchanger and the water inlet pipe connection of comdenstion water heat preservation storage case, comdenstion water heat preservation storage case delivery port and the water inlet pipe connection of heat supply network return water system are provided with the frequency conversion drain pump on this pipeline, all are provided with corresponding valve on each connecting tube.
The system operates as follows: the exhaust steam (about 150 ℃) of the small steam turbine entering the heat exchanger and the circulating water of the cooling tower exchange heat in the heat exchanger, the circulating water of the cooling tower absorbs heat and heats up (about 60 ℃) to be discharged and conveyed to the clean water pool of the chemical water, so as to improve the temperature of the chemical water in the clean water pool of the chemical water (about 15 ℃), because the reverse osmosis water yield of the chemical water of the power plant is closely related to the temperature of the chemical water, the water yield can be increased by about 1.5 tons when the temperature of the chemical water is increased by 1 ℃, therefore, the reverse osmosis water yield of the chemical water can be; and the exhaust steam of the small steam turbine entering the heat exchanger is condensed into hot water with the temperature of about 90 ℃, the hot water is naturally discharged into the condensed water heat-preservation storage box under the action of gravity, and the high-heat condensed water stored in the condensed water heat-preservation storage box is pumped into a heat supply network water return system through a variable-frequency drain pump for recycling.
Further, the heat exchanger is a spiral plate heat exchanger or a spiral tube heat exchanger. The spiral plate heat exchanger and the spiral tube heat exchanger are two heat exchangers which are commonly used in the market at present, are suitable for gas-liquid or liquid-liquid heat exchange and have higher heat exchange efficiency.
Still further, the condensed water heat-preservation storage tank is provided with an exhaust hole, an overflow port and a sewage discharge port.
The utility model has the advantages that: the small steam turbine exhaust steam recycling system reasonably and effectively recycles the small steam turbine exhaust steam, contributes to energy conservation, consumption reduction and emission reduction of thermal power enterprises, and brings considerable economic benefits to the enterprises.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the system comprises a small steam engine 2, a cooling tower 3, a water melting clean water tank 4, a heat exchanger 5, a condensed water heat-preservation storage tank 5-1, an exhaust hole 5-2, an overflow port 5-3, a sewage discharge port 6, a heat supply network backwater system 7 and a variable-frequency drain pump.
Detailed Description
A small steam turbine exhaust steam recycling system is shown in figure 1 and comprises a small steam turbine 1, a cooling tower 2, a chemical water clean water tank 3, a heat exchanger 4, a condensate water heat-preservation storage box 5 and a heat supply network water return system 6, wherein the heat exchanger 4 is arranged above the condensate water heat-preservation storage box 5, a water inlet of the heat exchanger 4 is communicated with a circulating water main pipe of the cooling tower 2, a water outlet pipeline of the heat exchanger 4 is connected with the chemical water clean water tank 3, a steam inlet of the heat exchanger 4 is communicated with an exhaust steam pipe of the small steam turbine 1, a condensate water outlet of the heat exchanger 4 is connected with a water inlet pipeline of the condensate water heat-preservation storage box 5, a water outlet of the condensate water heat-preservation storage box 5 is connected with a water inlet pipeline of the heat supply network water return system 6, a variable-frequency drain pump 7 is arranged on the pipeline, and corresponding.
The heat exchanger 4 is a spiral plate heat exchanger or a spiral tube heat exchanger. The spiral plate heat exchanger and the spiral tube heat exchanger are two heat exchangers which are commonly used in the market at present, are suitable for gas-liquid or liquid-liquid heat exchange and have higher heat exchange efficiency.
The condensed water heat preservation storage tank 5 is provided with an exhaust hole 5-2, an overflow port 5-3 and a sewage draining port 5-4.
The system operates as follows: the exhaust steam (about 150 ℃) of the small steam turbine entering the heat exchanger 4 and circulating water of a cooling tower exchange heat in the heat exchanger 4, the circulating water of the cooling tower absorbs heat and is heated (about 60 ℃) to be discharged and conveyed to a chemical water clean water tank 3 so as to improve the temperature of chemical water in the chemical water clean water tank 3 (about 15 ℃), and the reverse osmosis water yield of the chemical water of a power plant is closely related to the temperature of the chemical water, so that the water yield can be increased by about 1.5 tons when the temperature of the chemical water is increased by 1 ℃, and the reverse osmosis water yield of the chemical water can be greatly improved; and the exhaust steam of the small steam turbine entering the heat exchanger 4 is condensed into hot water with the temperature of about 90 ℃, the hot water is naturally discharged into the condensed water heat-preservation storage tank 5 under the action of gravity, and the high-heat condensed water stored in the condensed water heat-preservation storage tank 5 is pumped into a heat supply network water return system 6 through a variable-frequency drain pump 7 for recycling.
The above embodiments are only used for explaining the present invention, and not for limiting the protection of the present invention, and any insubstantial changes made on the basis of the essential schemes of the present invention should fall within the protection scope of the present invention.

Claims (3)

1. The utility model provides a little steam turbine exhaust steam retrieves system of recycling which characterized in that: including little steam turbine (1), cooling tower (2), change water clean water basin (3), heat exchanger (4), comdenstion water heat preservation storage box (5), heat supply network return water system (6), heat exchanger (4) set up in the top that comdenstion water heat preservation storage box (5), the water inlet of heat exchanger (4) and the circulating water house steward intercommunication of cooling tower (2), the delivery port pipe connection of heat exchanger (4) changes water clean water basin (3), the steam inlet of heat exchanger (4) and the exhaust steam pipe intercommunication of little steam turbine (1), the comdenstion water export of heat exchanger (4) and the water inlet pipe connection of comdenstion water heat preservation storage box (5), comdenstion water heat preservation storage box (5) delivery port and heat supply network return water system (6) pipe connection are provided with frequency conversion drainage pump (7) on this pipeline, all are provided with corresponding valve on each connecting tube.
2. The small steam turbine exhaust steam recycling system according to claim 1, characterized in that: the heat exchanger (4) is a spiral plate heat exchanger or a spiral tube heat exchanger.
3. The small steam turbine exhaust steam recycling system according to claim 1, characterized in that: the condensed water heat-preservation storage tank (5) is provided with an exhaust hole (5-1), an overflow port (5-2) and a sewage draining outlet (5-3).
CN202020758426.4U 2020-05-11 2020-05-11 Little steam turbine exhaust steam recycling system Active CN212378579U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020758426.4U CN212378579U (en) 2020-05-11 2020-05-11 Little steam turbine exhaust steam recycling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020758426.4U CN212378579U (en) 2020-05-11 2020-05-11 Little steam turbine exhaust steam recycling system

Publications (1)

Publication Number Publication Date
CN212378579U true CN212378579U (en) 2021-01-19

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CN202020758426.4U Active CN212378579U (en) 2020-05-11 2020-05-11 Little steam turbine exhaust steam recycling system

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CN (1) CN212378579U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112797811A (en) * 2021-02-25 2021-05-14 国家能源泰安热电有限公司 Heat exchange cooling device and heat exchange method for high-back-pressure unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112797811A (en) * 2021-02-25 2021-05-14 国家能源泰安热电有限公司 Heat exchange cooling device and heat exchange method for high-back-pressure unit

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